Therapeutic lamp.



E. W. LOGKE. THERAPEUTIC LAMP. APPLICATION FILED SEPT.16, 1908.

Patented Jan. 12. 1909.

3 SHEETSSHEET 1.

Witnesses: Inventor: 44 wdvew QQZ w ago/1a,

Attorneys.

E. w. LOGKE. THERAPEUTIC LAMP. APPLIOATION FILED SEPT. 16, 1908.

Patented Jan. 12, 1909..

3 SHEETS-SEEET 2.

Witnesses I flventur 5. MM. I 614% M@,

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M. Pmmw Attorneys.

E.- W. LOGKE.

' THERAPEUTIC LAMP.

APPLICATION FILED SEPT.16, 190s.

- Patented Jan. 12, 1909.

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Attorneys cap for the lamp-attaching fixture. Fig. 4"

UNITED STATES PATENT oFFIoE. EDITH w. LOCKE, or CHICAGO, ILLINOIS.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed September 16, 1908. Serial No. 453,349.

To all whom it may concern:

Be it known that L'EDITH W. Looms, a citizen of the United States, and a resident of Chicago, in the county of Cook, in the State of Illinois, have invented certain new and useful Improvements in Therapeutic Lamps; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheets of drawings, forms a full, clear, and exact specification, which will enable others skilled in the art to which it appertains to make and use the same. I

This invention has general reference to improvements in therapeutic lamps for medical, surgical and other curative purposes; and it consists, essentially, in the novel and peculiar combination of parts, and details of construction, as hereinafter first fully set forth and described, and then pointed out in the claims.

In the drawings already referred to, Figure 1 is a longitudinal sectional elevation of my improved therapeutic lamp. Fig. 2 is a transverse-sectioual, inverted, plan in line so a: of Fig. 1 looking in the direction of an arrow. Fig. 3 is an inverted plan of the is a sectional elevation of the same in line y y of Fig. 8. Fig. 5 is a perspective view of the tubular attaching means by which the cap and the lamp-attaching elbow are securely united. Fig. 6 is a plan with the cap removed. Fig. 7 is a sectional elevation of a portion of the lamp-attaching fixture, the cap being removed, said figure being drawn on the line a z of Fig. 6.

Like parts are designated by corresponding letters and characters of reference in all the figures.

The object of this invention is the produc tion of a therapeutic, electric lamp used in surgical, medical and other treatments of diseases of the human body, in which various defects which my experience with such lamps have demonstrated and 'disclosed. shall be effectually overcome. In using these lamps, I have found that the intense heat radiated by the lamp within the confining space of a surrounding jacket and reflected by a powerful reflector. has a tendency to break the glass bulb of the electric lamp, and that injuries to the patient under treatment, sometimes of a very serious nature, result from such breakage. I

have also discovered that the attachment of the glass bulb to the lamp is defective inas much as it requires considerable time in order to remove and replace a broken bulb.-

All these objections and others not necessary to particularly point out, are overcome in the improvements in my lam which improvements I shall now procee to describe in detail.

A, in the drawings, represents the usual electric incandescent lamp. which, for the purpose of therapeutic treatment, is of great heat, and light-giving capacity, and which lamp is receiving its electric current or energy by the leads or wires B. This lamp .is suspended from the attaching body 0 by means of four metallic spring-like prongs, D, which as shown in Figs. 1 and 7, are peculiarly curved to embrace the neck a of the lamp-bulb A, reinforced by an endless coil-spring E, shown in Fig. I, acting upon the outersurfaces of said prongs to tightly hold the lamp A in position.

C, as heretofore mentioned, is the lampattaching body. It consists of two separate parts 0 and C the latter serving as a basepiece to which the former is attached and cular disk having on its under side an oblong projection 79, which forms the separa or of the two .wires B B there being through the circular disk two apertures 6 Figs. 6 and 7, through which screw threaded-rods b are passed to the lower ends of which knurled nuts 0 are screwed and then binding posts F screwed below the knurled nuts 0. The body C is secured to the attaching-body by means of nuts 0 at the upper, end of said rods in a manner hereinafter to be referred to, there being lock nuts 0 on said rods to prevent the screw-threaded rods from dropping out of position when the upper nuts 0 are removed.

The attaching-body C, is a circular, slightly tapering, body having an annular, slightly downwardly projecting flange C. [-11 this attaching-body there are four diametrically opposite apertures (Z, and two other, similarly located apertures (Z the former to receive the shanks c of the four prongs D, and the latter to permitthc passage of screw-bolts Gr, having thumb-nuts g at'their upper ends, theheads-of said bolts upper extremities at d, and. again bent to .to avoi form the shanks e. The portion (1 of these prongs is located between the lower portion C and the upper ortion C of the attaching body, and secure y clamped there-between when the knurled nuts 0 are drawn taut; insulating and non-conducting media H, Fig. 7 being laced between the two bodies C C any metallic contact and at the same time prevent heat from bein communicated to the upper body C an parts connected therewith.

I, Figs. 1, 3 and 4, is the cap for the attaching-bodies, C C. It is a shell composed of preferably porcelain the same as the bodies C C and having in its head z' an up.- wardly projecting extension or boss 2'. Within this shell are, located, at diametrically opposite places, two metallic contactieces J having downwardly projecting lugs l, and also downwardly projecting binding posts, j, said contact-pieces with'their pend ent lugs and binding-posts being secured in said shell by means of screws 7'.

' The insulated or electric conducting cord B enters the cap through the branch is of an elbow K, and thence downwardly, where the two conducting wires 10 k are bared and their ends secured in the binding-posts j.

The elbow K is held in position by a tubular sleeve L, shown in detail in Figs. 3, 4 and 5, said sleeve L having an external screwthread m, wherewith engages a lock nut m,

Fig. 4, and having at its lower end two radially projecting lugs of, which lugs enter similarly shaped recesses f, Fig. .3, thereby preventing the sleeve from turning in the cap and also avoiding its being pulled out of said cap, the lock-nut m being provided to securely hold the sleeve L in said cap. The upper branch of this elbow is internally screw-threaded to receive a coupling nut N, Fig. 1, by means of which a supporting arm P is revolvingly and removably attached to the elbow, said arm P being bent, as shown, and connected with its lower end to a hood Q, which will hereinafter be more fully referred to.

Upon the upper surface of the attachingbody 0 and held by the nuts 0 upon the screw-threaded rods 6 there are located two contact forks 0, Figs. 6 and 7 wherewith engagethe downwardly projecting lugs j of the contact-pieces J, to connect the conduct ing wires k with the binding-posts F, Fig. 7, and through the rods 1) and from the binding-posts F throu h the wires B B already mentioned, wit the filament of the lamp A in the usual manner.

It will now be observed that, to break the circuit, and remove the lamp A, the thumbnuts g are removed from the bolts G when the entire ca I, may be removed from the attachin -bo C, and the knife switches compose of t e lugs j, on the contacbplates J, and the companion members of the fork O disengaged, the conductors B B disengaged from the binding-posts F, and then the lamp disengaged from the prongs D by' removing the spring E and pulling the lamp A out of contact with said prongs. broken or burned-out lamp A may be readily removed and a new one placed into position in a very short space of time.

I have heretofore mentioned the hood Q. This hood is a cylindrical shell having a tapering section Q, the upper end of which has an inwardly-projecting flange 'Q, by which the hood Q is held in position, said flan e 9 being clamped between the outwar ly projecting flange G on the attaching member C and the lower edge of the cap I, as clearly illustrated inFig. 1. This hood has on its lower cylindrical portion a handle R by .means of which it and, in fact, the entire apparatus, is manipulated, and it has also a peep-hole S through which observations' may be had. In the tapering portion Q there are three (more or less) outwardlyforced projections 11-, which form within the tapering portion depressions within which a reflector T, of less diameter than the cone at the place where the reflector is located, is-

In this manner a through the annular space T and escapes at the exit apertures 6 thus keeping the lamp cool without interfering with the therapeutic qualities of the heat and light rays emanatin from the lamp filament U. This introduction of a current of cold air I have found during a series of experiments extendin over a sufficiently long term to prevent reakage of the glass bulb without interfering with the beneficial eifects of said lamp. 7

Having thus fully described this inven tion, I claim as new and desire to secure to me by Letters Patent of the United States- 1. As an improved article or manufacture, a therapeutic lamp consisting, essentiall of an-incandescent lam an attaching b y for said lamp compose of two separate attaching bodies and a cap, said parts being suitably connected together, a non-conductor of heat interposed between the two bodies per attaching body, and a suitable hood secured to the upper attaching body and the cap, as described.

2. In an improved therapeutic lamp, an incandescent lamp, an attaching body for said lamp consisting of three separate parts roperly secured together, downwardly proectmg prongs secured to said attaching bodies between the upper and lower bodies, and having shanks entering apertures in the upper body, a cap, contact pieces within said cap having knife-switch lugs and binding posts' as described, contact forks upon the upper face of the upper attaching body adapted to engage the knife-switch lugs, screw-rods passing through said attaching bodies, there being nuts at the upper ends of said screw rods to fasten the contact forks upon said upper body and lock nuts and binding-posts at the lower ends of said screw rods whereby the two bodies composing the attaching body are secured one to the other,

said screw-rods bein also electric conductors for the current with which the incandescent lamp is supplied, a tubular sleeve in said cap, said sleeve being provided with means for suspendin than the tapering shel lugs to prevent rotation, a lock nut on said sleeve to securely hold the sleeve in osition, an elbow attached to said sleeve, an e ectrical conducting lead entering-said elbow at its branch and having its bared Wire's engagin the binding posts on said contact pieces, an

the lamp 1n any de sired angular or vertical position.

3. In a therapeutic lamp, a hood and refiector, said hood being a partly cylindrical and partly tapering shell, there being in said tapering portions depressions and exit openings, said reflector being of smaller diameter at its point of suspension therein, whereby an annular space is afforded between the shell and the reflector, there being radially projecting lugs on said reflector engaging the depressions in the tapering portion. of said hood.

In testimony that I claim the foregoing as my invention I have hereunto set my hand in the presence of two subscribing witnesses.

.JDITH W. LQCKE.

Attest:

WILLIAM O. STARK, ELLA WELsI-roUsn. 

